[PATCH 1/1] Test Mauros timing patch.

Gon Solo
2019-10-03T08:06:48Z

Signed-off-by: Gon Solo <gonsolo@gmail.com>
---
drivers/media/tuners/si2157.c | 32 ++++++++++++++++-----------
drivers/media/usb/dvb-usb-v2/af9035.c | 14 ++++++++----
2 files changed, 29 insertions(+), 17 deletions(-)

diff --git a/drivers/media/tuners/si2157.c b/drivers/media/tuners/si2157.c
index d389f1fc237a..9e20727b7e84 100644
--- a/drivers/media/tuners/si2157.c
+++ b/drivers/media/tuners/si2157.c
@@ -75,6 +75,24 @@ static int si2157_cmd_execute(struct i2c_client *client, struct si2157_cmd *cmd)
return ret;
}

+static int si2157_power_up(struct si2157_dev *dev, struct i2c_client *client)
+{
+ struct si2157_cmd cmd;
+
+ if (dev->chiptype == SI2157_CHIPTYPE_SI2146) {
+ memcpy(cmd.args, "\xc0\x05\x01\x00\x00\x0b\x00\x00\x01", 9);
+ cmd.wlen = 9;
+ } else if (dev->chiptype == SI2157_CHIPTYPE_SI2141) {
+ memcpy(cmd.args, "\xc0\x00\x0d\x0e\x00\x01\x01\x01\x01\x03", 10);
+ cmd.wlen = 10;
+ } else {
+ memcpy(cmd.args, "\xc0\x00\x0c\x00\x00\x01\x01\x01\x01\x01\x01\x02\x00\x00\x01", 15);
+ cmd.wlen = 15;
+ }
+ cmd.rlen = 1;
+ return si2157_cmd_execute(client, &cmd);
+}
+
static int si2157_init(struct dvb_frontend *fe)
{
struct i2c_client *client = fe->tuner_priv;
@@ -102,19 +120,7 @@ static int si2157_init(struct dvb_frontend *fe)
if (uitmp == dev->if_frequency / 1000)
goto warm;

- /* power up */
- if (dev->chiptype == SI2157_CHIPTYPE_SI2146) {
- memcpy(cmd.args, "\xc0\x05\x01\x00\x00\x0b\x00\x00\x01", 9);
- cmd.wlen = 9;
- } else if (dev->chiptype == SI2157_CHIPTYPE_SI2141) {
- memcpy(cmd.args, "\xc0\x00\x0d\x0e\x00\x01\x01\x01\x01\x03", 10);
- cmd.wlen = 10;
- } else {
- memcpy(cmd.args, "\xc0\x00\x0c\x00\x00\x01\x01\x01\x01\x01\x01\x02\x00\x00\x01", 15);
- cmd.wlen = 15;
- }
- cmd.rlen = 1;
- ret = si2157_cmd_execute(client, &cmd);
+ ret = si2157_power_up(dev, client);
if (ret)
goto err;

diff --git a/drivers/media/usb/dvb-usb-v2/af9035.c b/drivers/media/usb/dvb-usb-v2/af9035.c
index 80d3bd3a0f24..c4d4994e0079 100644
--- a/drivers/media/usb/dvb-usb-v2/af9035.c
+++ b/drivers/media/usb/dvb-usb-v2/af9035.c
@@ -1207,6 +1207,9 @@ static int af9035_frontend_attach(struct dvb_usb_adapter *adap)
return ret;
}

+/* I2C speed register = (1000000000 / (24.4 * 16 * I2C_speed)) */
+#define I2C_SPEED_REGISTER 26
+
static int it930x_frontend_attach(struct dvb_usb_adapter *adap)
{
struct state *state = adap_to_priv(adap);
@@ -1575,13 +1578,13 @@ static int it930x_tuner_attach(struct dvb_usb_adapter *adap)

dev_dbg(&intf->dev, "adap->id=%d\n", adap->id);

- /* I2C master bus 2 clock speed 300k */
- ret = af9035_wr_reg(d, 0x00f6a7, 0x07);
+ /* I2C master bus 2 clock speed ~100k */
+ ret = af9035_wr_reg(d, 0x00f6a7, I2C_SPEED_REGISTER);
if (ret < 0)
goto err;

- /* I2C master bus 1,3 clock speed 300k */
- ret = af9035_wr_reg(d, 0x00f103, 0x07);
+ /* I2C master bus 1,3 clock speed ~100k */
+ ret = af9035_wr_reg(d, 0x00f103, I2C_SPEED_REGISTER);
if (ret < 0)
goto err;

@@ -2128,6 +2131,9 @@ static const struct usb_device_id af9035_id_table[] = {
/* IT930x devices */
{ DVB_USB_DEVICE(USB_VID_ITETECH, USB_PID_ITETECH_IT9303,
&it930x_props, "ITE 9303 Generic", NULL) },
+
+ { DVB_USB_DEVICE(USB_VID_DEXATEK, 0x0100,
+ &it930x_props, "Logilink VG0022A", NULL) },
{ }
};
MODULE_DEVICE_TABLE(usb, af9035_id_table);
--
2.20.1